GMAT Math Memorization

Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. How do you find the slope of a line? Difference in the y-coordinates over the difference in the x coodinates
48
60
5^(1/3)

2. =6*13 88
78
169
306

3. =4^3 10 -000 -000
36
95
64

4. =5^4 8
625
342
65

5. SQRT 121 272
11
140
Even

6. =3*15 0 (any fraction with 0 on top is 0)
39
Move the decimal to the right on both numbers until there is nothing to the right of the decimal
45

7. =14*17 50
25
One (1)
238

8. odd x odd = 6
46 -656
6
Odd

9. =4*11 3
44
99
1 -000

10. =17*18 57
182
49
306

11. =4^3 143
132
64
256

12. =6*11 Even
Start with the number of permutations - that is the numerator(top). The Denominator is the number of combinations (eg 432*1)
60
66

13. =9*16 144
4
272
Will = 1 - Won't

14. =14*14 247
Even
208
196

15. =7*9 Add their exponents (6^2 *6^3 = 6^5)
209
If the number formed by it's last 2 digits is divisible by 4 (3 -028 is because 28 is divisible by 4)
63

16. Adding or subtracting fractions with the same denominator Undefined
24
68
Add or subtract the numbers on top and keep the same denominator

17. Equation for a line? 208
y=mx+b where b is the y-intercept (the point which crosses the y-axis) m is the slope of the line - and x & y are the coordinates of some point on that line
51
288

18. =7*11 77
88
36
360

19. Adding and Subtracting Decimals Line up the decimal points and proceed as usual
100
36
361

30. Probability that A or B will happen? 35
A+B (Add both probabilities)
7 -776
512

31. =3*12 36
216
8
112

32. =5*5 25
36
72
195

33. Circumference of a circle? 40
57
2pr
32

34. SQRT 2 -401 49
512
1 -000 -000 -000
Undefined

35. =6^2 36
156
154
Pr^2

36. =3*9 361
256
238
27

37. =5*15 210
Will = 1 - Won't
152
75

38. When is a number divisible by 3? Move the decimal to the right on both numbers until there is nothing to the right of the decimal
Line up the decimal points and proceed as usual
If the sum of its can be divided evenly by 3 (216 - is because 2+1+6 is divisible by 3)
120